E90/E91/E92/E93 (2006 - 2013)
Hey guys, so i have a 2008 BMW 335i coupe with 57k miles. I noticed lately while driving that's have a " but bup bup" noise coming from my rear diff or rear tires and the noise gets louder as I drive faster. I jacked the car up and spun both rear tires by hand and could hear the noise but I...